C04B 35/581
Based on aluminium nitride
Official title: based on aluminium nitride
C04B35/581 (Based on aluminium nitride) appears on 859 US grants and 709 published applications in this corpus.
Search patents in C04B- Granted patents
- 859
- Published applications
- 709
- Assignees
- 397
- Inventors
- 1,870
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 16 | 0 |
| 1987 | 13 | 0 |
| 1988 | 18 | 0 |
| 1989 | 27 | 0 |
| 1990 | 25 | 0 |
| 1991 | 31 | 0 |
| 1992 | 20 | 0 |
| 1993 | 33 | 0 |
| 1994 | 29 | 0 |
| 1995 | 22 | 0 |
| 1996 | 28 | 0 |
| 1997 | 15 | 0 |
| 1998 | 18 | 0 |
| 1999 | 25 | 0 |
| 2000 | 7 | 0 |
| 2001 | 22 | 5 |
| 2002 | 19 | 28 |
| 2003 | 22 | 28 |
| 2004 | 18 | 30 |
| 2005 | 17 | 29 |
| 2006 | 16 | 31 |
| 2007 | 14 | 32 |
| 2008 | 15 | 30 |
| 2009 | 26 | 31 |
| 2010 | 20 | 27 |
| 2011 | 22 | 18 |
| 2012 | 16 | 22 |
| 2013 | 23 | 39 |
| 2014 | 18 | 20 |
| 2015 | 21 | 26 |
| 2016 | 23 | 24 |
| 2017 | 17 | 20 |
| 2018 | 18 | 22 |
| 2019 | 19 | 34 |
| 2020 | 13 | 31 |
| 2021 | 17 | 31 |
| 2022 | 24 | 29 |
| 2023 | 16 | 35 |
| 2024 | 22 | 37 |
| 2025 | 29 | 33 |
| 2026 | 17 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ceramic scribe substrate, ceramic substrate, method for manufacturing ceramic scribe substrate, method for manufacturing ceramic substrate, method for manufacturing ceramic circuit board, and method for manufacturing semiconductor element14 Jul 2026US 12,679,771 B2Niterra Materials Co., Ltd.
- Member for semiconductor manufacturing apparatus23 Jun 2026US 12,665,527 B2NGK Insulators, Ltd.
- Ceramic ball material, method for manufacturing ceramic ball using same, and ceramic ball12 May 2026US 12,624,728 B2Niterra Materials Co., Ltd.
- Sintered body, light emitting device, wavelength conversion member, and method for manufacturing sintered body28 Apr 2026US 12,612,550 B2Nichia Corporation
- Method for manufacturing transparent ceramic materials31 Mar 2026US 12,590,038 B2Georgia Tech Research Corporation
- Process for improving flash sintering of ceramics and improved ceramics8 Oct 2026US 2026/0308072 A1The Regents of the University of Colorado, a body corporate
- Mit Diamant beschichtetes AlN-Substrat und Verfahren zum Herstellen24 Sep 2026US 2026/0285775 A1Condias GmbH
- Aluminum nitride sintered body27 Aug 2026US 2026/0250205 A1NGK Corporation
- Method for preparing spherical aluminum nitride powder with high flowability20 Aug 2026US 2026/0242297 A1National Chung Shan Institute of Science and Technology
- Improved aluminum-containing nitride ceramic matrix composite, method of making, and method of use20 Aug 2026US 2026/0242660 A1SLT Technologies, Inc.
Most cited
By later US patents
- Transparent aluminum oxynitride-based ceramic article335US 5,231,062 AMinnesota Mining and Manufacturing Company · 1993
- Aluminum nitride-based sintered bodies, corrosion-resistant members, metal-buried articles and semiconductor-holding apparatuses320US 6,239,402 B1NGK Insulators, Ltd. · 2001
- Aluminum oxynitride having improved optical characteristics and method of manufacture309US 4,481,300 ARaytheon Company · 1984
- Transparent aluminum oxynitride and method of manufacture309US 4,520,116 ARaytheon Company · 1985
- Transparent aluminum oxynitride and method of manufacture308US 4,720,362 ARaytheon Company · 1988